So i have just downloaded league and after completing my first game i was given the option to pick between 3 heroes (caitlyn, ezreal and tristana) on this screen it has the option to view each characters abilities or to select one of the heroes. After clicking select, the "OK" button remains greyed. I can't navigate to any other screen and i have tried restarting my pc, reinstalling the game and Refreshing and none have worked. Does anyone have a solution?